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Title: Fuel cell anode configuration for CO tolerance

Abstract

A polymer electrolyte fuel cell (PEFC) is designed to operate on a reformate fuel stream containing oxygen and diluted hydrogen fuel with CO impurities. A polymer electrolyte membrane has an electrocatalytic surface formed from an electrocatalyst mixed with the polymer and bonded on an anode side of the membrane. An anode backing is formed of a porous electrically conductive material and has a first surface abutting the electrocatalytic surface and a second surface facing away from the membrane. The second surface has an oxidation catalyst layer effective to catalyze the oxidation of CO by oxygen present in the fuel stream where at least the layer of oxidation catalyst is formed of a non-precious metal oxidation catalyst selected from the group consisting of Cu, Fe, Co, Tb, W, Mo, Sn, and oxides thereof, and other metals having at least two low oxidation states.

Inventors:
;
Issue Date:
Research Org.:
The Regents of the University of California, Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175128
Patent Number(s):
6,818,341
Application Number:
09/848,823
Assignee:
The Regents of the University of California (Los Alamos, NM) OSTI
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; 36 MATERIALS SCIENCE

Citation Formats

Uribe, Francisco A., and Zawodzinski, Thomas A. Fuel cell anode configuration for CO tolerance. United States: N. p., 2004. Web.
Uribe, Francisco A., & Zawodzinski, Thomas A. Fuel cell anode configuration for CO tolerance. United States.
Uribe, Francisco A., and Zawodzinski, Thomas A. Tue . "Fuel cell anode configuration for CO tolerance". United States. https://www.osti.gov/servlets/purl/1175128.
@article{osti_1175128,
title = {Fuel cell anode configuration for CO tolerance},
author = {Uribe, Francisco A. and Zawodzinski, Thomas A.},
abstractNote = {A polymer electrolyte fuel cell (PEFC) is designed to operate on a reformate fuel stream containing oxygen and diluted hydrogen fuel with CO impurities. A polymer electrolyte membrane has an electrocatalytic surface formed from an electrocatalyst mixed with the polymer and bonded on an anode side of the membrane. An anode backing is formed of a porous electrically conductive material and has a first surface abutting the electrocatalytic surface and a second surface facing away from the membrane. The second surface has an oxidation catalyst layer effective to catalyze the oxidation of CO by oxygen present in the fuel stream where at least the layer of oxidation catalyst is formed of a non-precious metal oxidation catalyst selected from the group consisting of Cu, Fe, Co, Tb, W, Mo, Sn, and oxides thereof, and other metals having at least two low oxidation states.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {11}
}

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